XGY   Grimsby Mountain, ON Weather Observed At   43-11  N    79-34  W

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2026-06-10	1:00pm			Max		Min
Weather		----
Temperature		26.6 °C		26.6 °C	12:59pm	21.1 °C	5:49am
Relative Humidity		80 %		94 %	5:52am	80 %	12:57pm
Dew Point		22.9 °C		23.3 °C	12:49pm	20.0 °C	12:58am
Wind Velocity		203 ° at  2.8 G 7.0 kt		7.8 kt	8:49am
Pressure		29.777 "  ↓		29.873 "	12:00am	29.776 "	6:17am
Rainfall Rate		0.0 mm/h		10.2 mm/h	5:04am
Snow On Ground		0 cm
Brightness / Darkness		921 W/m² /  0.00 m/"²		1074 W/m²	12:42pm	19.79 m/"²	12:58am
Remarks

Rainfall	Today	4.6 mm	Storm Total	9.0 mm
Snowfall	Today	0.0 cm	Storm Total	0.0 cm

Evapotranspiration

Today

-1.37 mm

Lake Conditions

Water Temperature  14.3 °C

Waves  ¼ '

ICE FREE

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Meteor Index	4   Random
Aurora Index / Solar	24   Unsettled   + 3 nT	Solar Flux   130  sfu  /   S 0    G 0    R 0   /  MUF   23.8 MHz

Sunrise	5:39am	Sunset	8:58pm
Moonrise	N/A	Moonset	N/A	Moon Phase	Waning Crescent

Grimsby Mountain Weather Maps
Local	Regional	Area	Synoptic
updated H+09 and every 10m	updated H+19 and H+49	updated H+19

Ontario 6-Hour Meteorological Summary

Canadian 6-Hour Meteorological Summaries

CLIMAT Data
Official	Yesterday					2004	2005	2006	2007	2008	2009	Normals & Records
		2010	2011	2012	2013	2014	2015	2016	2017	2018	2019
		2020	2021	2022	2023	2024	2025	2026

Grimsby Mountain Charts

	Sky Quality (Darkness) Meter courtesy of

              

Wx Map	Sat Pix	IR Sat Pix	Radar	Lightning
	Water	Ice

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  This is a privately operated weather station that is part of the Meteorological Service of Canada's official observing network.
Permission to publish the weather statistics found on this website is not required.
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